<html><head></head><body>This may be asking too much, but can you explain why or how it's even possible to bypass the cache like this, Vijay?<br>
<br><br><div class="gmail_quote">On May 22, 2017 7:41:40 AM PDT, Vijay Bellur <vbellur@redhat.com> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div dir="ltr">Looks like a problem with caching. Can you please try by disabling all performance translators? The following configuration commands would disable performance translators in the gluster client stack:<div><span style="color:rgb(0,0,0);white-space:pre-wrap"><br /></span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.quick-read off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.io-cache off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.write-behind off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.stat-prefetch off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.read-ahead off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.readdir-ahead off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.open-behind off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">gluster volume set <volname> performance.client-io-threads off</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap"><br /></span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">Thanks,</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">Vijay</span></div><div><pre class="gmail-bz_comment_text gmail-bz_wrap_comment_text" id="gmail-comment_text_50" style="white-space:pre-wrap;word-wrap:break-word;width:50em;color:rgb(0,0,0)"><br /></pre></div><div class="gmail_extra"><br /><div class="gmail_quote">On Mon, May 22, 2017 at 9:46 AM, Christopher Schmidt <span dir="ltr"><<a href="mailto:fakod666@gmail.com" target="_blank">fakod666@gmail.com</a>></span> wrote:<br /><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all,<div><br /></div><div>has anyone ever successfully deployed a Kafka (Cluster) on GlusterFS volumes?</div><div><br /></div><div>I my case it's a Kafka Kubernetes-StatefulSet and a Heketi GlusterFS.</div><div>Needless to say that I am getting a lot of filesystem related exceptions like this one:</div><div><br /></div><div>Failed to read `log header` from file channel `sun.nio.ch.FileChannelImpl@<wbr />67afa54a`. Expected to read 12 bytes, but reached end of file after reading 0 bytes. Started read from position 123065680.<br /></div><div><br /></div><div>I limited the amount of exceptions with the log.flush.interval.<wbr />messages=1 option, but not all...</div><div><br /></div><div>best Christopher</div><div><br /></div></div>
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